Molekula
4-Aminobenzoic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Aminobenzoic acid is a white crystalline solid used in pharmaceuticals, dyes, and organic synthesis. It serves as an intermediate in the production of local anesthetics and other medicinal compounds. Available in powder form with a purity of ≥98%, it has a CAS number of 150-13-0, molecular formula C7H7NO2, and molecular weight of 137.14 g/mol. Store at ambient temperature. Molekula supplies 4-Aminobenzoic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 mg — £27.00 per pack ex VAT · £32.40 inc. VAT
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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1 kg — £103.30 per pack ex VAT · £123.96 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White or off-white crystalline powder |
| Melting Point | 186 -189°C |
| Heavy metals | <0.002% |
| Identification | UV should comply with the reference standard spectrum |
| Loss on Drying | <0.2% |
| Assay | 98.5% - 101.5% |
| Residue on Ignition | <0.1% |
| Ordinary Impurities | <1% |
| Volatile diazoizable substances | <0.002% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Light buff crystals; white when pure |
| Odour | Odorless |
| Melting Point | 188.5 °C |
| Solubility (other solvents) | Freely soluble in alcohol |
| Vapour Pressure | 0.000278 mmHg |
| pKa | pKa = 2.38 (at 25 °C) |
| log P (octanol/water) | 0.83 |
Source: PubChem CID 978 (HSDB, DrugBank, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 65447636 |
| CAS Number | 150-13-0 |
| IUPAC Name | 4-aminobenzoic acid |
| EC Number | 205-753-0 |
| Molecular Formula | H2NC6H4CO2H |
| Molecular Weight | 137.14 |
| Exact Mass | 137.0477 |
| SMILES | C1=CC(=CC=C1C(=O)O)N |
| InChIKey | ALYNCZNDIQEVRV-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10) |
| PubChem CID | 978 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29224937 |
| Tariff Code | 2922498590 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
- USH01 May form combustible dust concentrations in air
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 4-Carboxyaniline
- Amben
- p-aminobenzoic acid
- p-Carboxyaniline
- PABA
- Pabacyd
- para-aminobenzoic acid
- Paraminol
- Sunbrella
- Vitamin BX
Frequently asked questions
What is 4-Aminobenzoic acid used for?
It is primarily used in the synthesis of dyes, pharmaceuticals, and as a precursor in the production of other organic compounds.
What is the chemical formula and molecular weight of 4-Aminobenzoic acid?
The formula is H2NC6H4CO2H and the molecular weight is 137.14 g/mol.
How should 4-Aminobenzoic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 4-Aminobenzoic acid?
Molekula offers 4-Aminobenzoic acid in technical and research-grade forms.
Can Molekula supply 4-Aminobenzoic acid in bulk?
Yes, Molekula can supply 4-Aminobenzoic acid in bulk quantities upon request.
What documentation comes with an order of 4-Aminobenzoic acid?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.